<span>D. provide systematic irrigation.</span><span>
Agriculture Science is the science of crop production and its improvement. In Agriculture Science, scientists focus on research and development on various aspects of crop technology and production.
Crop improvements include:
1. Irrigation Management as a production technique
2. Minimizing the growth of pests
3. Transformation of raw products to end-consumer products
4. Prevention of adverse environmental effects (e.g. waste management and soil degradation)
5. Supply and demand for food in a global basis 6. Crop quantity and quality 7. Study of other fields of agriculture (e.g. soil science) </span>
Long-term health effects from air pollution include heart disease, lung cancer, and respiratory diseases
Short-term air pollution can aggravate the medical conditions of individuals with asthma and emphysema.
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Answer:
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Explanation:
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1. <span>China experiences </span>typhoons<span> every year and also suffers from floods, </span>tsunamis,earthquakes<span> and droughts.
2. </span><span>China is officially known as the People's Republic of China.
3. </span><span>China has the largest population in the world, with over 1.3 billion people (1,343,239,923) as of July 2012.
4. </span><span>There are many different languages spoken in China, including Mandarin, Yue, Wu, Minbei, Minnan, Xiang, Gan and Hakka.
5. </span><span>In 2003, China became the third country to successfully send a person to space.</span>
